Answer:
x = 3
Step-by-step explanation:
The initial expression is:
-19x + 207 = -12x + 186
To solve the equation, we need to isolate the x. So, we can start by subtract 186 from both sides of the equality:
-19x + 207 - 186 = -12x + 186 - 186
-19x + 21 = -12x
Then, we can add 19x to both sides:
-19x + 21 + 19x = -12x + 19x
21 = 7x
Finally, divide both sides by 7:
21/7 = 7x/7
3 = x
Therefore, the solution of the equation is:
x = 3